Corey Brent Penn Sr. (born October 8, 1968), known by his stage name CL Smooth, is an American rapper.

[1] Corey Brent Penn Sr. was born on October 8, 1968, in New Rochelle, New York, to a mother who was still in high school and a father who was largely absent after his birth.

During this period, CL Smooth mostly declined to appear on other artists' albums, with the exception of "Only the Strong Survive" with DJ Krush in 1996.

Among the artists to whose songs he has contributed guest vocals are AZ ("Magic Hour"), Raekwon ("Silk", also featuring Sauce Money), Nujabes ("Sky Is Falling"), JR Writer (the remix of "Mesmerize"), and Supafuh ("Act of Faith").

[4] The tour comprised six shows across California, and focused on voter mobilization leading up to the November 2010 midterm elections.